Comet Ikeya-Zhang

April 14, 2002

Uploaded 4/15/02

This close up of the inner quarter degree of coma of the comet reveals the very strong green tint caused by CN emissions from the nucleus. A very narrow jet like tail extends to the upper left, which is closer to white in coloration. To the left of the comets head, note the sky is not dark. That is the dust tail entering the image. DDP was used to preserve the brilliant core and outer tail details all in one image.

Instrument:  12.5" f/5 Home made Newtonian
Platform:  Astrophysics 1200 QMD
CCD Camera:  SBIG ST7E w/Enhanced Cooling
Exposure:  RGB = 2m:3m:3m 
Filters:  RGB Tricolor
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing FMHW = 2.5 arcsec, Transparency 8/10
Outside Temperature:  10 C
CCD Temperature:  -25 C
Processing:  Maxim DL, Photoshop, AIP4WIN




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